Science Roadshow

On Tuesday 14 March Ruma J went to a science roadshow at Grey high. The roadshow was in the hall. Around the edges of the hall were lots of exhibits with things to do with science. At the start and end of the show they showed us different pieces of equipment and and what they were used for like infra red cameras, x-ray machines, microscope, and binoculars. They showed us the difference between physical and chemical change. They put a flower in liquid nitrogen and it froze completely and its petals turned into crystal things.  One of the exhibits was where you rubbed your hands together and then placed them on metal which made static energy. They had lots of different cups and water and when they put the water in different cups it changed colour. There was a tube with something in it and then something else got added which made it foam up really big and it was called "elephant toothpaste", it was a blueish green colour. and In the middle of the room was a hovercraft thing that you sat on and people pushed you around on it. I would have liked some more time to explore the exhibits.